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My yaesu-ft1500m have a bad RX on low frequency's and the RX is bether on higher frequency's, but on 144-146 MHZ RX is bad and on higher like 150 mhz is bether than 146, and on 160mhz is bether than 150, also 170 RX is bether than 160 mhz. the sensitivity is bad and must be 0.22uV i tested it and on some frewuencys the sensitivity is over 400uV plese help yaesu ft-1500m is a ham radio p.s sorry if i put the problem to a wrong expert but ham radios are not listed in the expert area. thanx please please help

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  • Expert
  • 146 Answers

Sensitivity is a function of the rec rf amp and detector.selectivity is a function of image rejection and oscilator tuning accuracy. You have a good unit, needs aligned properly and troubleshot for bad components in reciever cktry

Posted on May 16, 2017

  • George Momberger
    George Momberger May 16, 2017

    remember , the antenna is most important part of rec and tran. ck standing wave in transmit. you may have bad ant match.

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SOURCE: Radio frequency fades after few seconds

your headset wires are the antenna of your phone... be sure to let it loose freely to avoid the frequency fading... dont fold it...

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1.9GHz for the PCS Data communications and the 800MHz Band for CDMA Voice Communications. It's likely the 800MHz repeater will function for this phone, provided it is intended as a mobile phone repeater. The data functionality (web, email, mms, etc.) may be limited still, but my guess is that if you are in an area that requires a repeater, you may have limited or no PCS data service anyhow.

-Josh

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FIX-XX
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SOURCE: Radio set up on samsung j700

FM radio works the same way that AM radio works. The difference is in how the carrier wave is modulated, or altered. With AM radio, the amplitude, or overall strength, of the signal is varied to incorporate the sound information. With FM, the frequency (the number of times each second that the current changes direction) of the carrier signal is varied. FM signals have a great advantage over AM signals. Both signals are susceptible to slight changes in amplitude. With an AM broadcast, these changes result in static. With an FM broadcast, slight changes in amplitude don't matter -- since the audio signal is conveyed through changes in frequency, the FM receiver can just ignore changes in amplitude. The result: no static at all.
For sellecting frenquencies, go to radio, options, set frequency and search...
Good luck!

Posted on Jun 15, 2008

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SOURCE: Yaesu FT 11R

figured out how to solve this, with the radio off, push and hold both up and down scan buttons, while powering the radio on. This will fix the problem.

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SOURCE: YAESU HAM RADIO FT270R DIAGRAM

http://www.radioamateur.eu/schemi/FT270_sch.pdf

google is your friend

Posted on Jan 23, 2009

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1 Answer

Tabla de frecuencias


CB Radio Channels (FCC)[32] Channel Frequency Channel Frequency Channel Frequency Channel Frequency 1 26.965 MHz 11 27.085 MHz 21 27.215 MHz 31 27.315 MHz 2 26.975 MHz 12 27.105 MHz 22 27.225 MHz 32 27.325 MHz 3 26.985 MHz 13 27.115 MHz 23 27.255 MHz 33 27.335 MHz 4 27.005 MHz 14 27.125 MHz 24 27.235 MHz 34 27.345 MHz 5 27.015 MHz 15 27.135 MHz 25 27.245 MHz 35 27.355 MHz 6 27.025 MHz 16 27.155 MHz 26 27.265 MHz 36 27.365 MHz 7 27.035 MHz 17 27.165 MHz 27 27.275 MHz 37 27.375 MHz 8 27.055 MHz 18 27.175 MHz 28 27.285 MHz 38 27.385 MHz 9 27.065 MHz 19 27.185 MHz 29 27.295 MHz 39 27.395 MHz 10 27.075 MHz 20 27.205 MHz 30 27.305 MHz 40 27.405 MHz

Oct 18, 2013 | Connex 3300 240-Channels Base CB Radio

1 Answer

Ft 2900r yaesu all i see on the screen is B0001 i can't see the frequency


Try powering the unit up while holding the Set/MHz button. I did that and it restored the display (and the rest of the radio's operation) back to normal.

The character codes are test-mode displays that correspond to frequencies (in MHz):

A0001-A0640 - 136.000-143.9875 in 12.5 KHz steps B0001-B0400 - 144.000-147.990 in 10.0 KHz steps
C0001-C2081 - 148.000-174.000 in 12.5 KHz steps

I haven't the foggiest idea why this isn't in the manual somewhere, or at least flipped back to normal by a two-key or three-key reset. 73, k2mct

Sep 16, 2012 | Yaesu FT-2900R 75 Watt 2 Meter VHF Mobile...

1 Answer

LOST MY MANUAL TO MY UNIDEN BEARCAT BC142XL CAN I GET A FREE REPLACEMENT


The manual isn't online to my knowledge however I did find a guide on how to program it.
"Turn it on. Push the "MANUAL" button to stop it from scanning.

Push number 1, then push "MANUAL" again. This should leave you on
channel one.

Using the keypad enter the frequency you want to monitor, then push
"E." Press "REVIEW" at anytime to see what frequency is programmed
there. If the review button flashes 000.0000 on the LED readout
display, you might be entering an invalid frequency. Refer to the list
of acceptable frequencies in the Frequency Range Bands below.

Push "MANUAL" to step to channel number two. Enter the frequency. Push
"E." Push "MANUAL" to step to channel three. Repeat this process until
all the (10) channels are full, or you've run out of frequencies to
enter.

Push "SCAN" to start automatically scanning the frequencies. The
radio will stop when it hears someone talking, and resume scanning two
seconds after the conversation has stopped.

Frequency Range Bands:

20 to 29.7 MHz (10 Meter "Ham" Band)
29.7 to 50 MHz (VHF Low Band)
50 to 54 MHz (6 Meter Amateur Band)
136 to 144 MHz (Military Land Mobile)
144 to 148 MHz (2 Meter "Ham" Band)
406 to 420 MHz (Federal Government Land Mobile)
420 to 450 MHz (70cm "Ham" Band)
450 to 470 MHz (UHF Standard Band)
470 to 512 MHz (UHF "T" Band)"

http://newsgroups.derkeiler.com/Archive/Rec/rec.radio.scanner/2006-01/msg00174.html
Hope this helps.

Apr 22, 2011 | Office Equipment & Supplies

1 Answer

PROGRAM FREQ IN BC142XL


Its so easy to use you really don't need a manual for the Uniden BC
142XL scanner.

Turn it on. Push the MANUAL button to stop it from scanning.

Push number 1, then push MANUAL again. This should leave you on
channel one.

Using the keypad enter the frequency you want to monitor, then push
E. Press REVIEW at anytime to see what frequency is programmed
there. If the review button flashes 000.0000 on the display, you might be entering an invalid frequency. Refer to the frequency coverage list below.

Push MANUAL to step to channel number two. Enter the frequency. Push E. Push MANUAL to step to channel three. Repeat this process until all ten channels are programmed, or you've run out of frequencies to enter.

Push "SCAN" to start automatically scanning the frequencies. The
radio will stop when it hears someone talking, and resume scanning two
seconds after the conversation has stopped.

Frequency Coverage:

20 to 29.7 MHz (10 Meter "Ham" Band)
29.7 to 50 MHz (VHF Low Band)
50 to 54 MHz (6 Meter Amateur Band)
136 to 144 MHz (Military Land Mobile)
144 to 148 MHz (2 Meter "Ham" Band)
406 to 420 MHz (Federal Government Land Mobile)
420 to 450 MHz (70cm "Ham" Band)
450 to 470 MHz (UHF Standard Band)
470 to 512 MHz (UHF "T" Band)

For a comprehensive database of active frequencies in your area, visit

www.RadioReference.com
.

Nov 07, 2009 | Uniden BC248CLT Base Scanner

1 Answer

How do i get expanded freqs on my ft1802 yaesu tranceiver


The FT-1802 is a 50 watt 2 meter FM transceiver. It can transmit anywhere between 144 - 148 Mhz (the FM portion) of the 2 meter ham band. It can receive anywhere between 136 - 174 Mhz without any modifications. There is a modification to enable transmit "out of band" below:

http://www.ham.dmz.ro/yaesu/ft-1802-extended-transmit-modification.php

There are few details about the results of this mod - typically these provide for transmitting on frequencies outside (above, below or both) of the 2 meter ham band. Transmitting outside of the ham band without a proper license for the frequencies in the U.S. is a violation of FCC rules.

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Intel motherboard D945GNT - which is the most compatible ram


According to Intel's site:
DDR2 667, DDR2 533, or DDR2 400 MHz SDRAM DIMMs

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1 Answer

PPT works in the lower bands (under 148 Mhz) but not 156 range


Your radio has not been modified to transmit outside of the amateur bands.

Jun 07, 2009 | Yaesu NABC NABC LMR NICD BATTERY FNB-29...

2 Answers

Yaesu FT-26 I got a Yaesu FT-26 that is used. The Problem by it is that its frequence between 140.000 and 148.000, i cant get lower or higher than, I cant even send or recieve anything!!! even when i press...


Same problem for me also blocking on the tape amateur 144/148 MHz not of emission nor of green reception led does not ignite malgres the modifs. Have a solution thank you

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